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西成客专线路运用状态干扰防护的实现

材料写作网    时间: 2020-06-29 05:07:32     阅读:次     手机站


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摘 要: 西成客专线路复杂,如何实现线路运用状态的干扰防护成为保证列车安全运行的关键之一,高压脉冲轨道电路则能较好地解决这一问题。通过介绍电流产生不平衡的原因,举例说明我国不平衡电流谐波干扰实测,并展开了一些探讨。重点叙述轨道电路对解决客运专线线路干扰采取的具体防护措施。分析得出这种高压脉冲轨道电路可以对此类干扰进行有效防护,且效果显著。

关键词: 客运专线; 高压脉冲轨道电路; 交流电气化区段; 干扰; 防护

Abstract: Due to the complexity of the Xicheng special passenger lines, the interference protection of the use of lines has become one of the keys to ensure the safe operation of trains. The high voltage pulse track circuit is a good solution to this problem. In this paper, the reasons for the imbalance of current generation and some examples of nonequilibrium current harmonic interference in China are introduced. The specific protective measures adopted by the track circuit to solve the interference of passenger dedicated line are emphatically described. It is concluded that this kind of high voltage pulse track circuit can protect such interference effectively, and the effect is remarkable.

Key words: Passenger dedicated line; Highvoltage pulse track circuit; AC electrification section; Interference; Protection

0 引言

西成客专线路运用复杂,既要途径路网交织的关中平原,又需穿越艰险高峻的秦岭山脉,自西安北站开出,最终到达成都东站,衔接西武高铁、大西高铁、成渝高铁等。随着直流和交流电气化铁道的发展,对检查线路运用状态的轨道电路提出了更高的要求,其工作是否稳定可靠是决定列车运行安全的首要因素。由于钢轨是交流电气化牵引区段牵引电流的回流线,所以轨道电路中不仅有信号电流流过,而且还有牵引电流流动。因此电气化区段的轨道电路要求必须...



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